Kriptografik Tanımlayıcılar
| SHA256 | f2b41e3f4d71315710a8a9f94b9f1f56be0e6d48634d27efe5045a4276e8cc34 |
|---|---|
| MD5 | 02ce49901dea7f64e8944b48eb9d9e04 |
| Dosya Türü | exe |
| Boyut | 507.9 KB |
| İlk Görülme | 2025-12-07 |
| Dosya Adı | autoruns.exe |
| Etiketler | exe, Smoke Loader, SmokeLoader |
Malware Ailesi: SmokeLoader
SmokeLoader, modüler loader/botnet'tir.
| Tür | Loader |
|---|---|
| Programlama Dili | C |
| Hedef Platform | Windows |
| C2 Protokolü | HTTP |
| Amaç | Ek yük indiren botnet |
| İlk Görülen Yıl | 2011 |
| Diğer İsimler | Dofoil |
Tehdit Göstergeleri (IOC)
- SHA256:
f2b41e3f4d71315710a8a9f94b9f1f56be0e6d48634d27efe5045a4276e8cc34 - MD5:
02ce49901dea7f64e8944b48eb9d9e04
Bu örneğin tüm hash değerlerini VirusTotal üzerinde doğrulayabilirsiniz.
Sistem Temizleme Rehberi
- Sistemi ağdan ayırın — Loader başka zararlı yazılım indiriyor olabilir
- İndirilen tüm payload'ları analiz edin
- Tüm ağ trafiğini inceleyin, şüpheli bağlantıları kesin
- Antivirüs ile tam tarama yapın
- Sistem yenileme düşünün
YARA Kuralı İpuçları
rule SmokeLoader_SHA256 {
meta:
description = "SmokeLoader sample: f2b41e3f4d713157"
threat_level = "high"
first_seen = "2025-12-07"
condition:
hash.sha256(0, filesize) == "f2b41e3f4d71315710a8a9f94b9f1f56be0e6d48634d27efe5045a4276e8cc34"
}SmokeLoader — Perfil do malware
SmokeLoader. autoruns.exe Sysinternals version info spoofing. Spaso developer PDB username. stub.pdb loader project artifact.
Detalhes técnicos
SmokeLoader (Dofoil/Smoke Bot) is a modular loader/downloader active since 2011. Primary function: download and execute additional payloads (Emotet, TrickBot, FormBook, Ursnif). Heavy obfuscation: string encryption (RC4+XOR), process injection via APC, code injection. Heaven's Gate technique: switches from 32-bit to 64-bit mode to evade WoW64 hooks. Anti-analysis: CPUID-based VM detection, process listing for analysis tools, timing checks. Uses process hollowing to inject into explorer.exe or svchost.exe. C2 communication: RC4-encrypted HTTP POST requests with bot ID, campaign ID. Sold as pay-per-install (PPI) service on underground forums (~$400/1000 installs). Frequently updated to bypass detection, >100 variants documented.
Atribuição / Ator da ameaça
Unknown (sold on underground forums, multiple operators)
Capacidades e comportamento
Lista IOC (2 indicadores)
# SHA256
f2b41e3f4d71315710a8a9f94b9f1f56be0e6d48634d27efe5045a4276e8cc34
# MD5
02ce49901dea7f64e8944b48eb9d9e04
| Tipo | Valor | Nota |
|---|---|---|
| sha256 | f2b41e3f4d71315710a8a9f94b9f1f56be0e6d48634d27efe5045a4276e8cc34 | Sample:SmokeLoader |
| md5 | 02ce49901dea7f64e8944b48eb9d9e04 | Sample:SmokeLoader |
Servidores C2 (5 servidores registrados para esta família)
| Endereço | Tipo | Porta | Protocolo | Status | País |
|---|---|---|---|---|---|
| 80.66.75.36 | ip | 80 | HTTP | inactive | RU |
| 148.72.171.175 | ip | 80 | HTTP | inactive | US |
| 91.243.44.247 | ip | 8888 | HTTP | inactive | RU |
| 185.173.35.16 | ip | 8080 | HTTP | inactive | RU |
| torcavpcs1.atitech.com | domain | 443 | TCP | inactive | — |
Os endereços C2 são fornecidos apenas a partir de amostras de malware verificadas manualmente pela equipe KEYDAL. O uso comercial é proibido.